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Reland "depot_tools: Run using Python 3 by default."

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This is a reland of 01ed358917

* python_runner.sh, gclient, roll-dep and fetch will call vpython
  (instead of vpython3) when running on Windows under git-bash.
* vpython3 now detects when running on Windows under git-bash and
  executes vpython3.bat instead.
* vpython3.bat calls python3.exe directly instead of calling python3.bat.

Original change's description:
> depot_tools: Run using Python 3 by default.
>
> Run gclient, roll-dep, fetch and custom git commands (i.e. git-cl, git-rebase-update, git-new-branch, etc.)
> using vpython3 by default.
>
> Change-Id: I4eecddafa6ca4c5f82ec097615c79d2a741613e7
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2113550
> Reviewed-by: Anthony Polito <apolito@google.com>
> Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>

Change-Id: I9829141d7ea26a67e655264430151f493e73a930
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2118418
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Reviewed-by: Anthony Polito <apolito@google.com>
This commit is contained in:
Edward Lesmes
2020-03-24 22:32:08 +00:00
committed by LUCI CQ
parent d682fa4e32
commit e9013eeb3d
7 changed files with 41 additions and 15 deletions
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8
roll-dep
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@@ -9,13 +9,19 @@ base_dir=$(dirname "$0")
# standalone, but allow other PATH manipulations to take priority.
PATH=$PATH:$base_dir
# MINGW will equal 0 if we're running on Windows under MinGW.
MINGW=$(uname -s | grep MINGW > /dev/null; echo $?)
if [[ $GCLIENT_PY3 = 1 ]]; then
# Explicitly run on Python 3
PYTHONDONTWRITEBYTECODE=1 exec vpython3 "$base_dir/roll_dep.py" "$@"
elif [[ $GCLIENT_PY3 = 0 ]]; then
# Explicitly run on Python 2
PYTHONDONTWRITEBYTECODE=1 exec vpython "$base_dir/roll_dep.py" "$@"
elif [[ $MINGW = 0 ]]; then
# Run on Python 2 on Windows for now, allows default to be flipped.
PYTHONDONTWRITEBYTECODE=1 exec vpython "$base_dir/roll_dep.py" "$@"
else
# Run on Python 2 for now, allows default to be flipped.
PYTHONDONTWRITEBYTECODE=1 exec vpython "$base_dir/roll_dep.py" "$@"
PYTHONDONTWRITEBYTECODE=1 exec vpython3 "$base_dir/roll_dep.py" "$@"
fi